Apparatus for Correcting Tolerance of Indicated Speed, System Having the Same, and Method Thereof

An embodiment apparatus for correcting an indicated speed tolerance includes a global positioning system (GPS) receiver, a processor, a memory coupled to the processor and storing instructions that, when executed by the processor, cause the processor to calculate an indicated speed by using a tolerance value for each vehicle speed section of a plurality of vehicle speed sections based on a wheel speed, and to correct an error between the indicated speed and a vehicle speed by using an actual speed of a vehicle based on GPS information received from the GPS receiver, and a display device configured to display the indicated speed.